VEHICLE BRAKING DISTANCE CHECK METHOD Russian patent published in 2000 - IPC

FIELD: transport engineering; vehicle testing facilities. SUBSTANCE: according to proposed method obtained information on vehicle running is converted into speed in form of first sequence of pulses. Intervals between pulses are filled by pulses of second sequence with higher constant frequency, and number of pulses in preceding and following intervals is compared, negative acceleration sign is determined and "braking commencement" signal is formed. From this moment counter-adder is filled with pulses of first sequence and result is displayed. Then, basing on number of pulses in out of singled out interval between first sequence pulses and on preset number corresponding to minimum speed of vehicle, "braking by skidding" signal is formed which inhibits getting of pulses of first sequence to counter-adder and enable getting of codes of skidding section braking distance which are formed from output of inertia decelerometer. EFFECT: enhanced accuracy of determination of braking distance at skidding. 3 cl, 4 dwg